Hi Jack, sure - this sounds fine.
Thanks :)
On Thu, 3 Jul 2003, Jack Grinband wrote:
> >Note however, feeding this (data-derived) information back into the GLM in
> >theory invalidates the resulting null-hypothesis inference, but that may
> >not be worth worrying about in practice.
>
> Even if you apply it to a different data set? Most people would do a
> checkerboard run, extract the hrf, then apply the hrf to the rest of the
> data. In this case the hrf is independent from the data to which it is
> applied. thanks,
>
> jack
>
Stephen M. Smith MA DPhil CEng MIEE
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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